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A181017 Number of nX(n+6) binary matrices with rows and columns each in strictly increasing order as binary numbers and every 0 adjacent to a 1 and every 1 adjacent to a 0 0
0, 0, 0, 0, 0, 0, 10, 17126, 24027686, 40597122781, 133344779207591 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

COMMENTS

Superdiagonal 6 of A181011

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for 7X13

..0..1..1..1..1..1..1..1..1..1..1..1..1

..1..0..0..0..0..0..0..0..0..0..0..0..0

..1..0..0..1..1..1..1..1..1..1..1..1..1

..1..0..1..0..0..0..0..0..0..1..1..1..1

..1..0..1..0..0..1..1..1..1..0..0..0..0

..1..0..1..0..1..0..0..1..1..0..0..1..1

..1..0..1..0..1..0..1..0..1..0..1..0..1

CROSSREFS

Sequence in context: A179425 A203466 A203695 * A055321 A092300 A048916

Adjacent sequences:  A181014 A181015 A181016 * A181018 A181019 A181020

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 30 2010

STATUS

approved

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Last modified August 3 20:08 EDT 2020. Contains 336201 sequences. (Running on oeis4.)